X-Git-Url: https://projects.mako.cc/source/selectricity-live/blobdiff_plain/9abed97635edbac7fb1a687298fff5c5434cdff4..e8111bfbb23641eb8f5e6afadab6ec38e9e260c4:/app/models/ranking.rb

diff --git a/app/models/ranking.rb b/app/models/ranking.rb
index f24f0f9..806252c 100644
--- a/app/models/ranking.rb
+++ b/app/models/ranking.rb
@@ -1,4 +1,32 @@
+# Selectricity: Voting Machinery for the Masses
+# Copyright (C) 2007, 2008 Benjamin Mako Hill <mako@atdot.cc>
+# Copyright (C) 2007 Massachusetts Institute of Technology
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public
+# License along with this program.  If not, see
+# <http://www.gnu.org/licenses/>.
+
 class Ranking < ActiveRecord::Base
   belongs_to :candidate
   belongs_to :vote
+  acts_as_list :scope => :vote, :column => :rank
+
+  def <=>(other)
+    self.rank <=> other.rank
+  end
+
+  def to_s
+    self.rank.to_s
+  end
+
 end